v1.6.1-beta.17

From newest to oldest:

• Added poster view #3487
• Fixed animetosho Brazilian Portuguese detection 3c9bce9
• Fixed Google translator baking errors into subtitles and silently swallowing per-line failures 00ff172
• Fixed mislabelling of Persian subtitles as hearing-impaired and improved log file redaction 5f8b6b2
• Fixed subdl provider discarding season packs and mislabelling hearing-impaired subtitles cd703a4
• Added alert when leaving with unsaved changes 2e27b0a